5ef145c809
The unbounded list-based sudog cache can grow infinitely. This can happen if a goroutine is routinely blocked on one P and then unblocked and scheduled on another P. The scenario was reported on golang-nuts list. We've been here several times. Any unbounded local caches are bad and grow to infinite size. This change introduces central sudog cache; local caches become fixed-size with the only purpose of amortizing accesses to the central cache. The change required to move sudog cache from mcache to P, because mcache is not scanned by GC. Change-Id: I3bb7b14710354c026dcba28b3d3c8936a8db4e90 Reviewed-on: https://go-review.googlesource.com/3742 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Dmitry Vyukov <dvyukov@google.com> |
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README.md
The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
For documentation about how to install and use Go, visit https://golang.org/ or load doc/install-source.html in your web browser.
Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.
Please report issues here: https://golang.org/issue/new
Go is the work of hundreds of contributors. We appreciate your help!
To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
Please note that we do not use pull requests.
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
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Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set the environment variable $GOROOT to the full path of the go directory (the one containing this file). You can omit the variable if you unpack it into /usr/local/go, or if you rebuild from sources by running all.bash (see doc/install-source.html). You should also add the Go binary directory $GOROOT/bin to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See https://golang.org/doc/install or doc/install.html for more details.